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Spectrum Hi-Fire

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Spectrum Hi-Fire brush-on glaze, product summary

The Spectrum range of glazes are leadless and nontoxic and therefore ideal for school use. They are unusually strong and give extra brightness and opacity. The firing range is 1180 to 1240 deg C.

For best results, apply 2 to 3 even coats to bisque allowing the glaze to dry between the coats. The samples show the results we achieved on both light coloured and red clay and were all fired at 1220 deg C in an electric kiln.

FOOD SAFE.

Details of sample preparation

The glaze samples are based on a 4cm square tile of a pale clay.
A diagonal stripe of red slip was then applied to simulate the effect on red clay.
The red clay is always shown in the bottom right hand corner.
For matt finishes, a clear glaze was applied on an opposite diagonal.

STONEWARE - We poured 1204M Casting slip into a tile mould and when dry brushed on 2 coats of UG38 Light Brown Contem underglaze with a hake, on the right hand diagonal to represent red coloured clay and biscuit fired to 1000 deg cent. We brushed on 3 coats of the glaze with a hake and re-fired to 1230 deg cent. in an electric kiln.

Safety Data - fact sheets are available for one or more of these product items